Erbijsommen tot 20
Erbijsommen
|
1.
15 + 1 =
16
7
|
2.
17 + 1 =
3
18
|
3.
18 + 1 =
19
2
|
4.
12 + 2 =
14
3
|
|
5.
18 + 0 =
18
13
|
6.
16 + 4 =
20
9
|
7.
5 + 7 =
8
12
|
8.
6 + 8 =
14
19
|
|
9.
15 + 3 =
18
12
|
10.
5 + 8 =
4
13
|
11.
6 + 3 =
9
5
|
12.
19 + 1 =
20
12
|
|
13.
18 + 2 =
20
1
|
14.
8 + 0 =
4
8
|
15.
6 + 12 =
18
8
|
16.
3 + 16 =
5
19
|
|
17.
3 + 5 =
8
1
|
18.
14 + 6 =
20
6
|
19.
6 + 13 =
1
19
|
20.
13 + 7 =
20
14
|